1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
almond37 [142]
3 years ago
7

find the area of triangle ABC. ROUND YOUR ANSWER TO THE NEAREST TENTH. m angle B=87degrees, a=10.1, c=9.8 a. 44.5 b. 33.6 c. 49.

4 d. 77.1
Advanced Placement (AP)
1 answer:
Lilit [14]3 years ago
3 0
1st, let's calculate the side AB = c in applying the law of cosine:

AC² = BC²+AC² - 2AB.BC. cos87°)
c²= 10.1²+9.8²-2(10.1)(9.8)(cos(87)
c²=102.01 + 96.04 -196.96cos(87) 
c² = 187.74 and c = 13.7
Having calculated the 3rd side, now we can apply Heron's formula for the area:
AREA = √p(p-a)(p-b)(p-c), where p is half the perimeter or p=(a+b+c)/2 =16.8

AREA = √16.8(16.8-10.1)(16.8-9.8)(16.8-13.7)
AREA = 49.42 OR 49.4 unit²
You might be interested in
What personal touches can you add to your outlines which make creating and studying from them easier?
ASHA 777 [7]
You can add pictures to help understand more easily.
8 0
3 years ago
Read 2 more answers
4. Suppose the house in question 3 is located in Cleveland where the annual average solar flux is 160 W/m2 2. If 10 m2 of solar
Ahat [919]

Answer:

Solar flux that incident on it is given as

S = 160 W/m/m

Now we know that the area of solar panels is given as

A = 10 m^2

So total solar power received by solar panels is given as

Power Received = (Solar flux) \times (Area)PowerReceived=(Solarflux)×(Area)

P = S\times AP=S×A

now here we have

P = 160 \times 10P=160×10

P = 1600 WP=1600W

now we know that efficiency of the solar panels is 20%

so total output power will be

efficiency = \frac{P_{out}}{P_{in}}efficiency=

P

in

P

out

0.20 = \frac{P_{out}}{1600}0.20=

1600

P

out

P_{out} = 320 WP

out

=320W

3 0
2 years ago
What is the history of Schizophrenia?
irina [24]
The nonspecific concept of madness has been around for many thousands of years and schizophrenia<span> was only classified as a distinct mental disorder by Kraepelin in 1887. He was the first to make a distinction in the psychotic disorders between what he called dementia praecox and manic depression.</span>
5 0
3 years ago
Read 2 more answers
Explain your most important accomplishment and explain why you think it as such. (Less than 400 words)
VLD [36.1K]

Answer:

That I won a big big trophy in soccer and the top student in that team that everyone loved

3 0
3 years ago
IS CEREAL BREAKFAST OR A SNACK? POLLLLLL RNNNNNN
Elden [556K]

Answer:

It can be eaten as either, although I think it's more commonly known as a breakfast food.

8 0
2 years ago
Read 2 more answers
Other questions:
  • Dr. Sanchez is reading about a study on Albert Einstein's brain, in which researchers compared Einstein's brain to a control gro
    5·1 answer
  • The fact that financial services are more plentiful and easier to access means that
    8·1 answer
  • Bureaucratic agencies are originally created by which of the following groups? a Congress b The President c The President's Cabi
    10·2 answers
  • One of the greatest benefits of dual enrollment courses is that students can receive:
    14·2 answers
  • Margaret, a vegetarian, is looking for a mushroom with a meaty texture to grill and eat instead of a hamburger. Which of the fol
    9·2 answers
  • How do animals contribute to soil productivity?
    12·2 answers
  • What meme is is popular on video right now? I give you a hint is one of the memes are vibing cat and poping cat.You can list mor
    9·2 answers
  • Riddle Time! Please help!
    9·2 answers
  • What will be next in sequence
    5·1 answer
  • What is the theme for the book the Zookeeper's Wife?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!